June 12, 2026

Senior QA Engineer – SaaS Integrations (API & Event-Driven Systems)

Senior • Hybrid

1,000 - 1,160 PLN

Gdynia, Poland

Why choose this offer?


  • You will have the opportunity to work independently

  • The international work environment will allow you to come into contact with the English language on a daily basis

  • Scandinavian organizational culture will provide you with work-lifebalance

  • The Jit.QA community will bring you a nice time during regular meetups

 

Project


Join a team responsible for building and maintaining SaaS integrations between a cloud-based platform and multiple external systems. The focus is on reliable data exchange via APIs, data synchronization, and event-driven communication patterns in a multi-tenant environment.

You will play a key role in ensuring end-to-end quality of integrations across distributed systems.

 

Responsibilities you'll have

  • Perform end-to-end testing of SaaS integrations, including cross-system workflows

  • Validate data quality:

    • correctness and completeness of synchronized data

    • consistency with system data models (e.g. Synergi Life)

    • API payload validation (JSON/CSV) and mappings

  • Test event-driven scenarios:

    • validate publish/subscribe flows

    • simulate failure scenarios (e.g. unavailable subscribers, network issues)

    • verify retry mechanisms and absence of duplicates or data loss

    • validate logging and monitoring

  • Assess integration reliability and non-functional aspects:

    • backward compatibility

    • resilience and robustness

  • Develop and maintain lightweight automation:

    • API-level tests

    • smoke and contract tests

  • Analyze logs, telemetry and system behavior to troubleshoot complex issues

  • Collaborate with developers, product managers, and external integration teams

 

Expected competences and knowledge

  • Strong experience testing complex integrations in SaaS or multi-tenant environments

  • Solid experience with API testing (REST)

  • Ability to validate data flows across multiple systems

  • Hands-on experience with testing tools / scripting (e.g. Postman, Bruno, PowerShell, Python)

  • Experience working with distributed systems

  • Ability to work independently as the primary QA in a team

Nice to have

  • Experience with event-driven architectures (e.g. message queues, Azure Service Bus, CloudEvents)

  • Understanding of asynchronous processing & integration patterns

  • Experience with logs & telemetry analysis

  • Exposure to test automation in integration contexts

  • Familiarity with Azure DevOps or similar tools

Soft skills

  • Strong communication and collaboration skills

  • Ownership mindset and proactivity

  • Analytical thinking and problem-solving

  • Ability to translate complex systems into clear test cases

Client – why choose this particular client from the Jit portfolio?


Our Client has been in the business of providing safety and insurance for the maritime industry for over 160 years and is now the leading provider of security certification and audits. They offer a wide range of digital projects to increase safety and compliance with standards in industrial fields. Our Client's solutions are used in the maritime industry, from raw materials extraction, to anywhere else where there is a need for quality and compliance with norms and standards. We have been working with our Client since 2013, creating and maintaining applications that are utilized in high-risk areas like rigs, mines, and police units, striving to make the world a safer place. Our Client's commitment to safety, ecology, and quality, which has its roots in Scandinavian culture, is implemented on a global scale. 

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Warsaw, Poland

800 - 1,100 PLN

🏢 Summary: Position focused on developing and maintaining automated testing solutions for modern banking systems within an Agile environment. The role emphasizes ensuring high software quality through test automation, data validation, and CI/CD support. Work is organized in a hybrid model with strong exposure to international collaboration. 🗂️ Requirements: 3+ years of experience in test automation development, Experience with Selenium, Experience with REST Assured, Proficiency in Java, Experience with XML, CSV, JSON, Ability to write SQL queries, Experience with Git, Experience with Jenkins, Knowledge of SDLC, Experience in Agile or SAFe 📃 Skills: Selenium, RESTAssured, Java, XML, CSV, JSON, SQL, Git, Jenkins, Agile, SAFe 🏢 Description: Work model: elastic hybrid from Gdańsk / Warszawa (2-3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time during regular integration meetings Project You will be involved in a financial project focused on developing and maintaining automated testing solutions for modern banking systems. The role includes ensuring high software quality through test automation, validation of data integrity , and supporting CI/CD processes within an Agile environment. Responsibilities you'll have Implement automated test cases and contribute to continuous improvement of the testing framework Gather and manage test data required for testing Monitor, debug, and document test results Proactively increase test coverag Expected competences and knowledge 3+ years of experience in developing and maintaining test automation solutions Knowledge of Selenium and REST Assured frameworks Java coding skills Experience with data manipulation using various formats (e.g., XML, CSV, JSON) Experience in preparing SQL queries Knowledge of testing standards English language proficiency Experience working with source code control tools (Git) and CI/CD tools (Jenkins) Knowledge of the software development lifecycle Strong analytical skills Good communication skills Experience with SAFe and Agile methodologies Keen attention to detail Technologies you'll work with Selenium REST Assured Java XML CSV JSON SQL Git Jenkins